Wrench.



M. M. SHUSTER.

WRENCH;

APPLICATIOII FILED I'EB.1 6 1914.

Patented Feb. 2, 1915.7

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ATTDBNEYS a in MYEB. M. snus'rnn, or rnitansnrnia, rnnnsrnvania.

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Specificationof Letters Fatent.

Patented I'Feb. 2, 1915.

Application filed February 1G, rare. 1 Serial no. erases.

1 b all whom it may concern.

Be it known that I, MYER M. SHUs'rnR,

citizen of the United States, residing in the city and county of Philadelphia, State of 5 Pennsylvania, have invented anew and useful Wrench, of which thefollowing is a specification. I

My invention consists of a wrench, provided" with a movable jaw capable of slipping over and around the corners of the. nut and again be held in rigid engagement with a face of said nut, whereby the wrench may be shifted upon the nut without removing it from the latter and have the action, of a 5 ratchet wrench.

It further consists of such a wrench in:- which one jaw can be adjusted in its relation to the other jaw within predetermined liniits to admit of the wrench being employed upon nuts of various sizes. 7

It further consists of other novel features of construction, all as will be hereinafter fully set forth.

The annexed drawings and 25 description set forth in detail one mechanicalform embodying the invention, such (18" tail construction being but one of various the principle of mechanical forms in which the invention may be used.

3d In said annexed drawings Figured represents a side vview of a wrench having an adjustable span or a so-called monkey-wrench embodying my invention. Fig. 2 represents an edge-view of such wrench. Fig. 3 represents a longitudinal section of such wrench, illustrating the wrench in position with its jaws slipping from one pair. of faces of the nut to another. Fig. 4 represents a perspective view of the movable jaw of said 4% wrench. Fig. 5 represents a View, on a smaller scale, of 'a wrench having a slightly" different embodiment of my invention. Fig. 6 r'epresents'a view, also on a smaller scale. of .a. portion of a wrench embodying-another 45 embodiment of a part of my invention.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to: the drawings, thereferen'ce numeral 1 indicates the handle of the 5.0 wrench, which handle is ofa shapeto form I a convenient grip for ,thehand. The handle has an enlarged head, 2, from which a stationary jaw, 3, projects, and formed with an H opening, 5," through it. A guide-perfora 55 tion, 6, isformed transversely through the in F ig. 2 of the thefollowing in the head, and the end the side of the opening in gitildinal recess,

one end of said 'ment with the end of head and partly intersects the outer wall of the opening to communicate. with the latter. A movable and adjustable jaw, 7, corresponding and opposed to the stationary jaw extends laterally from one end of a bar, 8, slidably fitted in the perforation, the outer side of which is open through the outer face of the head,up to the base of the stationary jaw,'to admit of sliding motion for the reduced shank, 9, of the movable and adjust able jaw, such opening forming aslot, 18,

as indicated in dotted lines drawings. A cogged rack, 11, is formed upon the side of-the bar opposite the jaw and is exposed into the outer side of the opening in the -head. A"worm or screw, '12, is located in saidopening and engages the rack,

for said shank,

14, in one end of the opening, and at the other end an axial stem, 15, of less diameter than the body, 16, of the worm, and engaging in a bore, 17, in the other end of the opening in the head of the'wr'ench, and bearing with its enlarged end, 18, against a spring, 19, in the bore and confined therein by a. plug, 20, closingthe outer end of the bore. A bolt, 21, is slidable in a longitudinal guide-groove, 22, in the handle and in a guide-opening, 23, forming a con into the opening of said bolt can engage between the end of the wormjand the head when moved outward, to' prevent longitudinal movement of the worm, The bolt has a lon- 24, in one side, through which a pin, 25, traversing the groove, projects and retains and limits the longitudinal tinuation of said groove ,play of the bolt. The handlehas a longinormally withdrawinglthebolti lanterns,

and'said worm has at one end an axial pintle, 13, which is ournaled in a bore,

31, extends inwardly from the free end of the latch and has an-arcuate slot, 32, movable upon a pin, 33, traversing the recess.

In practice, the movable jaw is adjusted 5 by means of the worm to have both jaws span the nut, 34, and bear against opposite fiat faces of'the same, as appears in Fig. 1 ofthe drawings, and the grasp of the'hand 1 upon the handle will force the latch inward .to push the locking bolt to engage the body of theworm and keep the same from longitudinal movement. The wrench Will thus firmly clasp'the nut and 'can turn the same. When anew gripis to be made upon the nut, the wrench needs not be removed from the nut, but the latch is released to allow the locking-bolt to withdraw, when the turning of the wrench upon thenut to get a new grip will allow the movable jaw to slip over the corners of the nut, as illustrated in Fig.

3 of the drawings, as the jaw can slide and- Y move the worm against its spring until the jaws obtain. a new grip upon the nut, when.

the jaw is again locked by grasping the.

handle and the latch. The action of the wrench will thus be substantially that of a ratchet wrench, andthe wrench needs not be removed from the nut each time a new grip is taken.. The wrench, thus combines the 80 functions of a monkey-wrench and a ratchetwrench.

In the form illustrated in Fig. 5 of the drawings, the adjustable jaw 7 is engaged by the worm 12, but-such worm has no 1on- 85 gitudinal movement, so that the adjustable jaw is stationaryin its adjusted positions. The opposite jaw, 34, has a reduced tongue, 35, which is pivoted 'in thehead of the wrench and .a flat spring, 36, 'is secured 49 upon the edge of the head and bears with its curved free portion against the curved outer edge of the jaw to normally hold the same parallel with the other jaw but allowing said'jaw to swing uponits pivot so as b to admit of the jaw slipping over the corners of the nut in the same-manner as the movable and adjustable jaw of the pre-. viously described form of wrench. Thesliding'bolt-2l is similar to that of said 60 other form and is similarly actuated by the latch 29, and the end of thebolt is forced over the tongue of the movably pivoted aw to hold the same when turning the nut.

The form illustrated in Fig. 6 hasthe movably 'pivoted jaw 34: and the same means for controlling it as the form lllustrated in Fig. 5, but the opposite jaw 3 is stationary, like that illustrated in Figs. 1,

' 2 and 3, so that the wrench 1s apphcable to one size of nuts,only, and not ad ustable as the other forms. When it is desired to holdthe movable jaw rigid without the necessity of manually holding the latch down, a pm canbe 66 inserted through -reg1stei1ng holes- 37, in

thus disclosed, provided the construction set forth, respectively, in the.

the handle and intersecting the recess, which pin engages the end of the" arcuate slot in the arm of the latch and retains it in looking position.

Other inodes of applying the principle of my invention may be employed for the mode herein explained. Change may therefore be made as regards the mechanism rinciples of following claims are employed.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is :5

1. A wrench, comprising a handle having a head and an outwardly projecting stationary .jaw, a jaw transversely movable upon said head opposed to said stationary jaw, means for adjusting the moyable jaw in its relation to said stationary jaw, yielding means actingagainst said adjusting means to force the same and the movable jaw toward the stationary jaw, and a lock adapted to engage said jaw adjusting means and having means for normally maintaining it disengaged.

2. A wrench, comprising a handle having a head anda'stationary jaw upon said head, a movable and transversely adjustable jaw opposed to said stationary jaw and having a rack-bar slidably guided in in one" direction, a bolt longitudinally slidable in "the handle to engage and lock said worm with one end, and a latch in the handle'and adapted to slide such bolt.

. 3. A wrench, comprising a handle having a head formed with a stationary jaw and with an opening through said head having axially alined bores in its sides and with a transverse guide-perforation intersecting the outer side of said opening and the outer face of said head, a movable and adjustable jaw opposed. to said stationary jaw and having a bar slidable in the transverse guide'perforation and formed with a rack extending into the aperture of the head, a worm engaging said rack and having an axial pintle and an axial stem rotatable and slidable in the axially alined bores of the aperture, a spring within one of said bores and bearing against the stem of the worm, a locking bolt slidable in the handle and having one end projecting into the aperture of the. handle to engage the body of the worm, and means for sliding said bolt.

4.. A; wrench, comprising a handle having. astationary jaw, an opposed jaw mov'- ably supported inthe head of said handle, a locking-bolt slidable in said handle and fadaptedto .lock said movable aw and having-at one end. a projecting lug, a sprang-13w 5 its pivoted'end and an arm i 3.9 head,

alanine 1 bearing-against said lug to Withdraw said bolt, and a latch pivoted in said handle to partly projeetthrough oneside thereof and having an arm projecting at an angle from at its free end ormed with an arcuate slot movable upon a pin in the handle.

5. A Wrench, comprising a handle having ahead, and a stationary jaw upon said a movable and adjustable jaw opposed to said stationaryjaw and having a Track-bar slidably guided in said head, a

longitudinally slidable Worm'in the headand engaging said rack-bar, a spring actupon sald Worm to move 1t in one d1- reotion, a locking-bolt slidable in said handle to have one end engage and lock saidworm and having at the other end a pro- .jeeting lug, a '30 lug to withdraw sai bearing against said bolt, and a latch ivoted in said handle to partly pro ect through one side thereof and having an spring arm projecting at an angle from its oted end and an arm at its free end formed with an arouate slot movable upon a pin in the handle.

piv-

6. A Wrench comprising a handle having MYEn M. SHUSTER.

Witnesses E; HAYWARD FAIRBANKS,

C. D: MoVAY it from said means, and a' ,30. jaw, yielding means acting 

